Headset



FIG. 1 is a perspective view of the headset.

FIG. 2 is a rear view thereof.

FIG. 3 is a front view thereof.

FIG. 4 is a bottom view thereof.

FIG. 5 is a top view thereof.

FIG. 6 is a side view thereof; and,

FIG. 7 is the other side view thereof.

The features shown with broken lines depict environmental subject matter only and form no part of the claimed design. 

The ornamental design for a headset, as shown and described. 